Related Clues:

• These could be "Yellow Brick" or "Copperhead"
• Block separators
• Yellow Brick and Tobacco
• XTC "___ Girdle the Globe"
• Bands of blacktop
• Garmin display lines
• MapQuest lines
• Open ways
• Curb locales
• Street relatives
• Ways in which boards head off differently
• Sides of blocks
• Some infrastructure
• Lines of equal baro­metric pressure
• Ways to confuse testers